Macos first aid volume could not be unmounted
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- MACOS FIRST AID VOLUME COULD NOT BE UNMOUNTED HOW TO
- MACOS FIRST AID VOLUME COULD NOT BE UNMOUNTED MAC OS X
- MACOS FIRST AID VOLUME COULD NOT BE UNMOUNTED MAC OS
The DiskUtil list command showed you disk0s1 and disk0s2, etc. The individual partitions on a disk, aka “slices,” could be unmounted if the system is not running in them. If it was able to do that, it would simply stop running. Process ID 0 (PID) is the system so the error you saw was the system being asked to unmount the drive its running on and refusing to do so. Unmounting disk0 would attempt to unmount all the partitions on the drive the mac is booted to. It probably won’t allow you to do that if one partition fails a consistency check.ġ3GB of free space is pretty full but generally not enough of a problem to prevent repairs. Rearranging the partition scheme when one partition has a directory problem could be harmful. It sounds like just the mac’s system partition is damaged.
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I don’t think you need to delete the bootcamp partition. Hopefully I will atleast be able to retrieve files from the HD if all else fails. At the moment I can't boot into the OS and can only boot into recovery mode or single user mode.
MACOS FIRST AID VOLUME COULD NOT BE UNMOUNTED MAC OS
I need help deleting the BOOTCAMP partition and merging with the greyed out Mac HD partition so that I can run fsck to hopefully restore my mac os to working order.
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This is as far as I got through searching for solutions online. The volume with PID 0 from the list provided by diskutil list is called GUID_partition_scheme. Now I tried to unmount the disk using that command and even with the force wildcard but it said: Forced unmount of disk0 failed: at least one volume could not be unmounted
MACOS FIRST AID VOLUME COULD NOT BE UNMOUNTED HOW TO
So I did some research and found another post on AskDifferent that explained how to delete a partition from terminal (in recovery mode) by first unmounting the physical disk using diskutil unmountDisk /dev/disk0 and then deleting the partition using gpt remove. However the option to delete the BOOTCAMP partition is disabled in Disk Utility. So what I thought I could try is delete my BOOTCAMP partition, which is about 100GB, and then merge the free space into the problem partition so that I can run fsck -fy in single user mode to try to repair the volume which now will have enough space to complete the operation.
MACOS FIRST AID VOLUME COULD NOT BE UNMOUNTED MAC OS X
Now the disk is greyed out in disk utility and I can't reinstall mac os x because I would need to erase all of the data on the drive and I don't want to lose the files I have on it. Sorry I didn't get any screenshots or anything but that is basically what happened. (I had about 13GB of free space at this time) Then it tried to restore the disk to it's original state on mount but it couldn't do this either, I'm guessing because of lack of disk space. So I opened in recovery mode and ran the first aid and it tried to fix the B-Tree of the catalog file, however there wasn't enough disk space to do this. I was trying to repair permissions today on my Mac so I ran the Disk Utility's First Aid on my drive and it said that there was an Invalid Index Key and that my disk was corrupt and I needed to run the first aid in Recovery mode.